AISVIT / AI Video / Image to Video

Veo 3.1 Fast — Image to Video

Image to Video with Veo 3.1 Fast in AISVIT. Animate still images into dynamic videos with AI. Add camera motion, subject movement, and cinematic transitions from a single source image.

About this model

Faster Google model for 4-8 second text-to-video and image-to-video clips with synchronized audio, a start image, last-frame control, and 720p or 1080p output.

When is this model useful?

Veo 3.1 Fast is strongest when you need a short, good-looking clip but speed matters more than maximum fidelity, so you can iterate on ideas, prompts, and formats faster than with the full Veo 3.1 model.

Best fit tasks

  • Fast text-to-video generation for ad concepts, moodboard scenes, storyboards, teasers, and first-pass creative directions.
  • Image-to-video animation for photos, illustrations, product shots, or hero visuals when you want to quickly test motion and scene mood.
  • Short social, demo, or presentation clips where you need to compare several prompt, camera, or audio variations quickly.
  • An intermediate step before a more expensive final render, when you want to filter weak ideas and keep only the strongest directions.

Main advantages

  • The Fast variant is quicker and cheaper than standard Veo 3.1, which makes it more practical for rapid prototyping and iteration loops.
  • It can generate video and audio together, so you can test not just the visuals but also ambience, environmental noise, or simple spoken moments.
  • This integration supports 16:9 and 9:16, plus 4, 6, and 8 second durations and 720p or 1080p output for different content formats.
  • You can start from an image and optionally use a last frame to guide the shot toward a more controlled ending.

Limitations to know

  • The current Fast version does not support reference images, so it is weaker than full Veo 3.1 when strict subject consistency matters.
  • It is built for short clips only, with 4, 6, or 8 seconds per generation.
  • Last-frame guidance is most useful together with a start image rather than as a standalone control.
  • Quality and consistency are usually a bit lower than standard Veo 3.1, and English prompts remain the safest choice for predictable results.

How to use this model

The best workflow for Veo 3.1 Fast is to build a workable scene quickly, then refine the prompt, sound, framing, and ending through short iteration cycles.

Simple workflow

  1. Write the prompt in plain language. For the most stable results, use English and describe the subject, action, setting, style, lighting, camera movement, and any sounds you want in the scene.
  2. Choose a duration of 4, 6, or 8 seconds. Four seconds is often enough for a quick concept check, while 6-8 seconds gives the motion or scene more time to develop.
  3. Select 16:9 for wide output or 9:16 for vertical clips for Reels, Shorts, or TikTok.
  4. Pick 720p for quick iteration or 1080p when you want a cleaner presentation-ready version.
  5. Turn on Generate audio if you want the model to create speech, ambience, environmental noise, or simple effects together with the video.

Supported inputs

  • Required: a text prompt.
  • Optional: one start image for image-to-video generation.
  • Optional: one last-frame image to guide the ending transition, best used together with a start image.
  • Reference images are not supported in the current Fast integration.
  • In the AISVIT upload flow, standard image formats such as JPG, PNG, and WEBP are the safest choice.

What you get

  • A generated MP4 video file.
  • 24 frames per second output.
  • A 4, 6, or 8 second video.
  • 720p or 1080p resolution.
  • Video with audio when Generate audio is enabled, or silent output when it is turned off.

Other workflows for this model

More Image to Video models

AISVIT pricing details

  • Without audio: 10 credits per second
  • With audio: 15 credits per second